Question

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Answer 1

Question :-

Find the surface area of the cylinder.

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Solution :-

Given Information :-

• Radius of the Cylinder ➢ 2 cm
• Height of the Cylinder ➢ 8 cm
• Value of π (pi) (not given) ➢ 3.14

To Find :-

• Surface Area of the Cylinder

Formula Used :-

• Area of cylinder = 2πr( r + h )

Calculation :-

Substituting the values given in the formula, We get,

⇒ Area of Cylinder = 2 × 3.14 × 2 ( 2 + 8 )

⇒ Area of cylinder = 2 × 3.14 × 2 ( 10 )

⇒ Area of cylinder = 2 × 3.14 × 20

Calculating further, We get,

⇒ Area of cylinder = 125.66 cm²

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Final Answer :-

• Area of cylinder = 125.66 cm²

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Answer 2

Solution given:

radius [r]=2cm

height [h]=8cm

total surface area of cylinder=?

we have

total surface area of cylinder=2πr²+2πrh

• 2πr(r+h)
• 2π*2(2+8)
• 40π or 125.66cm²

total surface area of cylinder40π or 125.66cm².